A160861 The digits of each number can be divided into two groups which have the same product.

11, 22, 33, 44, 55, 66, 77, 88, 99, 100, 111, 122, 133, 144, 155, 166, 177, 188, 199, 200, 212, 221, 224, 236, 242, 248, 263, 284, 300, 313, 326, 331, 339, 362, 393, 400, 414, 422, 428, 441, 482, 500, 515, 551, 600, 616, 623, 632, 661, 700, 717, 771, 800, 818

Offset

1,1

Comments

Contains almost all primes.

Links

Table of n, a(n) for n=1..54.

Example

177 is in the sequence because its digits {1,7,7} may be grouped so that 1*7=7.
632 is in the sequence because its digits {6,3,2} may be grouped so that 2*3=6.

Crossrefs

Sequence in context: A033283 A044851 A276769 * A302575 A302801 A067042

Adjacent sequences: A160858 A160859 A160860 * A160862 A160863 A160864

Keyword

nonn,base,easy

Author

Claudio Meller, May 29 2009

Status

approved